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Leetcode 2265. Count Nodes Equal to Average of Subtree

Count the nodes in a binary tree whose value equals the integer average (floor of sum/count) of all values in their subtree — solved by computing each node’s subtree sum and size (e.g., with a post-order traversal) and comparing the value to sum//count.

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Late August, 2025

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Mid August, 2025

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Late May, 2025

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